I have an original Pacman joystick from a real Pacman game. I really like this joystick as it plays Pacman just how I remember it. Having said that, I think I like the Happ MsPacman/Galaga reunion joystick even better. It does have mechanical restriction to the 4 directions. If I were buying one or two "4-way only" sticks I would buy the reunion stick.
This is just my opinion, FWIW.